Produced by Charles Cahill and Associates (Hollywood, Calif.) in association with the Institute of Traffic and Transportation Engineering (ITTE) at the University of California, Los Angeles. Director: Pat Shields. Writer: Mac MacPherson. Cameraman: J.D. Mickelson. With the cooperation and assistance of U.S. Public Health Service; J.H. Mathewson, Assistant Director, ITTE and D.M. Severy, Research Engineer, UCLA.
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